| Oakie.Ai Limited | Information & communication | 2025 |
| Oaklands Fold Freehold Limited | Real estate | 2014 |
| Oaklands Manor (NO.2) Limited | Households | 1996 |
| Oakworth Estates Limited | Real estate | 2025 |
| Oasis Paving and Landscaping Ltd | Administrative & support | 2025 |
| Obsessive Compulsive Media Ltd | Professional & scientific | 2024 |
| OFF Piste Creative Ltd | Information & communication | 2024 |
| Olakanmi Ltd | Manufacturing | 2019 |
| Old Cottage Store Ltd | Wholesale & retail | 2025 |
| Olicana Properties Limited | Real estate | 1967 |
| Olicana Roofing & Joinery Ltd | Construction | 2020 |
| Olicana Textiles Limited | Wholesale & retail | 1973 |
| Olive & FIG Coffee Shop & Kitchen Ltd | Hospitality | 2023 |
| Oliver's Huts Ltd | Manufacturing | 2021 |
| Omni Channel Consulting Services Limited | Professional & scientific | 2022 |
| One Medical Property Holdings Limited | Construction | 2016 |
| One More HUG Ltd | Manufacturing | 2025 |
| Onyx Executive Travel (Yorks) Ltd | Administrative & support | 2023 |
| Optident Holdings Limited | Financial services | 2012 |
| Optident Labline Limited | Wholesale & retail | 1998 |
| Optident Limited | Wholesale & retail | 1985 |
| Optivote Ltd | Wholesale & retail | 2013 |
| Opus 24 Ltd | Transport & logistics | 2025 |
| Orange Opportunity Limited | Construction | 2001 |
| Ordovic Holdings Ltd | Real estate | 2019 |
| Organic Carbon Limited | Administrative & support | 2021 |
| Origin Residential Ltd | Construction | 2020 |
| Osteria a Roma Ltd | Hospitality | 2016 |
| Osteria by Simmer Kitchen Ltd | Hospitality | 2025 |
| Otley Accountants Limited | Professional & scientific | 2024 |
| Otley Action for Older People | Health & social care | 2012 |
| Otley BID Limited | Other services | 2013 |
| Otley Boats Limited | Arts & recreation | 2017 |
| Otley Cattle Market Auction Limited | Agriculture & fishing | 1932 |
| Otley Coffee Culture Limited | Professional & scientific | 2019 |
| Otley Developments Limited | Extraterritorial | 2012 |
| Otley Estates Limited | Households | 2017 |
| Otley Events Company Limited | Other services | 2023 |
| Otley Golf Club Limited | Arts & recreation | 2019 |
| Otley Hire Centre Limited | Wholesale & retail | 1997 |
| Otley Mini Market Ltd | Wholesale & retail | 2024 |
| Otley Museum and Archive Trust | Arts & recreation | 2012 |
| Otley Older People's Trust Ltd | Health & social care | 2020 |
| Otley Osteopaths Limited | Health & social care | 2014 |
| Otley Roofing and Building Ltd | Construction | 2020 |
| Otley Rufc (Trading) Limited | Arts & recreation | 2022 |
| Otley Rufc Limited | Arts & recreation | 2019 |
| Otley Sailing Club | Arts & recreation | 2014 |
| Otley Taps Ltd | Hospitality | 2020 |
| Otley Tavern (Leeds) Limited | Hospitality | 2018 |
| Otleyburger Limited | Hospitality | 2018 |
| Otto Brook Limited | Real estate | 2026 |
| Ourbiome Ltd | Wholesale & retail | 2025 |
| OWL Inns Ltd | Hospitality | 2023 |
| OWL Village Ltd | Wholesale & retail | 2025 |
| O’Deli (Otley) Limited | Wholesale & retail | 2016 |
| P & G Widdop Limited | Wholesale & retail | 2015 |
| P Momirovski IR Limited | Arts & recreation | 2024 |
| P.H. Properties (2008) Limited | Administrative & support | 1976 |
| Paddico (306) Limited | Real estate | 2015 |
| Paint IT Hardware Limited | Wholesale & retail | 2013 |
| Paley Groundworks (Civils) Limited | Construction | 2004 |
| Paley's Carpets Limited | Wholesale & retail | 2010 |
| Park Rash Limited | Real estate | 2022 |
| Parker Engineering and Transmissions Ltd | Manufacturing | 2012 |
| Parkes & Co Ltd | Real estate | 2010 |
| Parkmount Estate Company (Allerton) Limited | Real estate | 1968 |
| Party Hub Yorkshire Ltd | Arts & recreation | 2019 |
| Pathtrack Limited | Professional & scientific | 2006 |
| Patientcomms Limited | Information & communication | 2014 |
| Pauline Roberts Systems Practitioner Limited | Professional & scientific | 2016 |
| Peak Ascent Ltd | Wholesale & retail | 2016 |
| PEG Property Ltd | Real estate | 2019 |
| Perfect Workflows Ltd | Information & communication | 2012 |
| Pervas. Ltd | Wholesale & retail | 2023 |
| Petwise (Otley) Ltd | Wholesale & retail | 2016 |
| Philip J Gomersall Ltd | Construction | 2003 |
| Phoenix Services Ltd | Hospitality | 2025 |
| Pinball Lizard Ltd | Manufacturing | 2025 |
| Pixel Cubed Limited | Information & communication | 2011 |
| Pizza Pieces Ltd | Hospitality | 2022 |
| Pizza Torino Limited | Hospitality | 2017 |
| PJM Designs Limited | Professional & scientific | 2020 |
| PJT Field Services Ltd. | Administrative & support | 2023 |
| Polymer Engineering Consulting Limited | Professional & scientific | 2015 |
| Pool Bank Vintage Interiors Ltd | Wholesale & retail | 2017 |
| Pool Business Park Limited | Manufacturing | 1999 |
| Pool Crook Farm Management Co. Limited | Households | 2006 |
| Pool Crook Properties Limited | Real estate | 2008 |
| Pool Dog Park Limited | Agriculture & fishing | 2023 |
| Pool Enterprise Park Management Company Limited | Real estate | 2014 |
| Pool Hand Car Wash and Valeting Ltd | Administrative & support | 2026 |
| Pool House Management Company Limited | Households | 1993 |
| Portholme Mews Management Co. Limited | Real estate | 1986 |
| Post Vintage Engineers Limited | Administrative & support | 2012 |
| Power Fitzmaurice Properties Ltd | Real estate | 2022 |
| PPC Services Limited | Construction | 2024 |
| PPL Information Services Ltd | Information & communication | 2023 |
| PRC Leisure Limited | Arts & recreation | 2012 |
| Precision Building and Joinery Ltd | Construction | 2024 |